Recent content by KokoDaSilvaback
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RMS Current through RLC combination ciruit
So, the impedance of the parallel portion is ##(R^{-1}+ (jwl)^{-1})^{-1}##, correct? That preserves the real and imaginary components, which can then be added in series with the other impedance values.- KokoDaSilvaback
- Post #13
- Forum: Introductory Physics Homework Help
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K
RMS Current through RLC combination ciruit
So I'm back to square one essentially? Since the current will split between the parallel branches, there is no way 6.5mA will go to the resistor.- KokoDaSilvaback
- Post #11
- Forum: Introductory Physics Homework Help
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K
RMS Current through RLC combination ciruit
Ok, after rerunning the number and keeping my real portion separate from my imaginary portion, I end up with an impedance of 1528.72Ω, which when used to divide the 10VRMS, gives me IRMS = 6.54mA. That value closely matches the value sought, but do I now need to calculate the voltage drop across...- KokoDaSilvaback
- Post #9
- Forum: Introductory Physics Homework Help
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K
RMS Current through RLC combination ciruit
So rather than take the magnitude of the parallel impedance, simply add 1/R and 1/XL, then add those values to the rest of the reactance values, leaving the impedance calculation for the final step?- KokoDaSilvaback
- Post #7
- Forum: Introductory Physics Homework Help
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K
RMS Current through RLC combination ciruit
For a parallel circuit I have: $$Z = \frac {1} {\sqrt{(1/R)^2 + (1/jwl)^2}},$$ but when I perform that calculation, the inductance is no longer imaginary, as I have to use the complex conjugate in order to properly calculate the impedance of the parallel branch. The value I got from this...- KokoDaSilvaback
- Post #5
- Forum: Introductory Physics Homework Help
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K
RMS Current through RLC combination ciruit
So in that case would I treat the reactance (XL and XC) as entirely imaginary and the resistance as real? Once those are found, then calculate the impedance of the circuit?- KokoDaSilvaback
- Post #3
- Forum: Introductory Physics Homework Help
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K
RMS Current through RLC combination ciruit
Homework Statement Referencing the attached picture: a) Show that the RMS current in the 1 kΩ resistor is 6.5mA. b) If the AC voltage source was replaced by a battery, what would the current in the resistor be? Homework Equations V = IR Z = √(R^2 + X^2) The Attempt at a Solution To begin, I...- KokoDaSilvaback
- Thread
- Circuit Circuits Ciruit Combination Current Electricity Electricity and magnetism Impedance Rlc Rms
- Replies: 13
- Forum: Introductory Physics Homework Help